Description

This article mainly talks about the comparison of Cavitation Cleaning Technology with Other Technologies for Long-Distance Pipeline Cleaning. It lists out the advantages of Cavitation Cleaning Technology.

The following first part is the comparison of Cavitation Cleaning Technology with Other Technologies for Long-Distance Pipeline Cleaning.

Chemical Cleaning Weaknesses

Corrosion and Pollution: Chemical cleaning requires the use of chemical agents, which can corrode pipelines and pollute the environment.

High Cost and Long Duration: Cleaning long-distance pipelines (several kilometers or more) and large-diameter pipelines (over 100mm) is challenging, time-consuming, and costly.

Cavitation Jet Cleaning Advantages(Piping Pig)

In the field of pipeline cleaning, the “cavitation jet” cleaner has several advantages over conventional Pigging technology and high-pressure water jet technology, including:

Superior Cleaning Performance

The cavitation jet cleaning technology works differently from Pig cleaning technology. It delivers higher energy to remove deposits effectively. This technology utilizes the “cavitation effect” in fluid dynamics. It generates high-speed micro-jets and shock waves during cleaning. It thoroughly removes oil, chemical, water, rust, soft, hard, and sticky deposits. It works on various types of scale buildup. For pipelines with internal coatings, this method minimizes adhesion between deposits and the pipe wall. By adjusting the cleaner’s size and structure, it reduces cavitation intensity while ensuring effective cleaning. This approach cleans thoroughly while keeping pipeline coatings intact.

Fast Cleaning Speed 

Field tests in Daqing Oilfield show that cleaning 1 km of DN65 pipeline takes only 15 minutes. In a water-jacket heater, cleaning takes just 5 minutes to complete. Longer pipelines benefit more from this method. Faster cleaning ensures normal oilfield production.

Long Cleaning Distance

Powerful water jets clear loosened dirt, preventing blockages. Pig cleaning removes dirt by scraping, which can cause severe blockages. High-pressure water jet cleaning covers only a few hundred meters per session due to equipment limitations.

Strong Passing Ability & High Flexibility

The cavitation jet cleaner has flexible blades with a 30% shrinkage ratio. It moves both forward and backward, cleaning complex U-shaped and spiral pipes. For blockages, an electronic locator quickly identifies and removes obstructions.

Wide Cleaning Range

It cleans pipelines from Φ40mm to Φ1000mm, with no limits on length or deposit type.

Safe & Reliable

On-site safety is ensured, except when using electric welding. High-pressure water jet cleaning requires 60-120 MPa pressure, which can cause worker injuries from operational errors.

Working Process of the EMT Cavitation Jet Piping Pig

The Cavitation Jet EMT Piping Pig moves at 0.4-1.2 m/s with a 0.6-1.2 MPa pressure difference. It transports liquid through the pipeline while discharging 25-40% of the conveyed liquid. Its cleaning speed depends on water consumption, deposit hardness, pressure difference, pipeline slope, and discharge outlet distance.

The cavitation pig is inserted into the pipeline and moves forward under water pressure and flow. The pig’s blades vibrate intensely, creating high-frequency oscillations and rapidly rotating water flow around it. This movement forms a continuous, moving low-pressure zone where water remains in a vaporized state. Countless tiny vapor bubbles form and are quickly compressed by high-pressure water, causing them to collapse violently. These bubbles explode with 800-1000 MPa force, loosening and breaking down dirt and deposits. This process effectively removes contaminants from the ash-discharge pipeline.

Over time, all pipelines, regardless of material or purpose, inevitably accumulate deposits. Their performance is inevitably affected by these deposits. Effective cleaning of EMT Cavitation Jet Piping Pig is essential to maintain proper pipeline function. The goal of cleaning is to restore pipelines to their original design state. This must be done using effective methods, in minimal time, and at low cost. Cavitation jet technology was introduced from Russia by our company. This technology provides significant advantages in fluid mechanics and waste removal. Currently, it is exclusively available in China.